490640159 has 2 divisors, whose sum is σ = 490640160. Its totient is φ = 490640158.

The previous prime is 490640149. The next prime is 490640203. The reversal of 490640159 is 951046094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490640159 - 2²⁴ = 473862943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490640119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245320079 + 245320080.

It is an arithmetic number, because the mean of its divisors is an integer number (245320080).

Almost surely, 2^490640159 is an apocalyptic number.

490640159 is a deficient number, since it is larger than the sum of its proper divisors (1).

490640159 is an equidigital number, since it uses as much as digits as its factorization.

490640159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 490640159 is about 22150.3986194380. The cubic root of 490640159 is about 788.7166896303.

The spelling of 490640159 in words is "four hundred ninety million, six hundred forty thousand, one hundred fifty-nine".